If you scratch a mineral sample with your fingernail, a knife blade, or glass, what property are you testing?

luster

streak

acid effervescence

hardness

answer; i do believe that the correct answer is; ///mendelian genes are at specific loci on the chromosome and, in turn, segregate during meiosis;

check for the pregnancy rating of drug. if its class c or d see if other alternatives

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.

because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle